As Leguminosae arbóreas das florestas estacionais do Parque Estadual do Itacolomi, Minas Gerais, Brasil

Abstract

ResumoEste estudo consiste do tratamento taxonômico das Leguminosae arbóreas das florestas estacionais do Parque Estadual do Itacolomi (PEI). As coletas de material botânico ocorreram mensalmente, entre setembro de 2004 e novembro de 2005, ao longo de oito trilhas distribuídas em áreas de florestas estacionais submontana, montana e altimontana. O levantamento resultou em 39 táxons reunidos em 22 gêneros e distribuídos entre as três subfamílias: Caesalpinioideae (9 espécies), Mimosoideae (17) e Papilionoideae (13). Os gêneros mais representativos foram Inga (8 espécies), Machaerium (4), Senna e Dalbergia (3, cada), Abarema, Anadenanthera e Tachigali (2, cada). Bauhinia, Cassia, Copaifera, Melanoxylon, Calliandra, Mimosa, Piptadenia, Pseudopiptadenia, Stryphnodendron, Andira, Bowdichia, Ormosia, Platypodium, Pterocarpus e Swartzia apresentaram uma espécie cada. Ormosia friburgensis e Tachigali friburgensis são registradas pela primeira vez para o estado de Minas Gerais. São fornecidos chave de identificação, descrições, ilustrações, dados fenológicos, comentários taxonômicos e preferência por habitats de cada táxon no PEI. Palavras-chave: Fabaceae, leguminosas, Mata Atlântica, taxonomia. Abstract This study presents the taxonomic treatment of woody Leguminosae in seasonal forests of Itacolomi State Park (PEI). Botanical material was collected monthly, from September 2004 to November 2005, along eight trails in submontane, montane and upper montane seasonal forests. Woody Leguminosae were represented by 39 taxa in 22 genera distributed among the three subfamilies: Cesalpinioideae (9 species), Mimosoideae (17), and Papilionoideae (13). The most representative genera were Inga (8 species), followed by Machaerium (4), Senna and Dalbergia (3 each), Abarema, Anadenanthera, and Tachigali (2 each). Bauhinia, Cassia, Copaifera, Melanoxylon, Calliandra, Mimosa, Piptadenia, Pseudopiptadenia, Stryphnodendron, Andira, Bowdichia, Ormosia, Platypodium, Pterocarpus, and Swartzia were represented by one species each. Ormosia friburgensis and Tachigali friburgensis are reported for the first time in Minas Gerais state. Analytical key, descriptions, illustrations, data on phenology, and comments on taxonomy and preferred habitat in PEI are provided for all taxa.

Phanerogamic flora and vegetation of Itacolomi State Park, Minas Gerais, Brazil

“…There were found only a preliminary checklist of campos rupestres (Peron 1989), specific family studies about Orchidaceae (Alves 1990, Batista et al 2004, Leguminosae (Dutra et al 2005, 2008a, 2008b, Lima et al 2007, Bromeliaceae (Coser et al 2010), Myrtaceae (Bünger et al 2012) and Asteraceae (Barnadesieae e Mutiseae) (Almeida et al 2014). And also, few floristic studies have been recently published on small patches of campos rupestres (Gastauer et al 2012) and forests (Pedreira & Sousa 2011) of this conservation unit.…”

Geographic distribution patterns of Leguminosae and their relevance for the conservation of the Itacolomi State Park, Minas Gerais, Brazil

“…The list of taxa used in this study was obtained from the floristic survey of the Leguminosae within the PEIT , Dutra et al 2008b, 2008c, 2009, Lima et al 2010c. The habit descriptions were according to GuedesBruni et al (2002).…”

Expanding the description of Bionia bella Mart. ex Benth. (Leguminosae, Papilionoideae)

“…Lima et al (2007) and Fernandes & Garcia (2008), who conducted floristic studies, respectively, in Itacolomi State Park and in the vicinity of the Brigadeiro State Park, both of which are in Minas Gerais, noted that the flowers of B. bella did not form fruits. According to Lima et al (2007), this failure to fruit suggests that this species has some reproductive difficulties. According to Queiroz (2008), species of the genus Bionia are ornithophilous, being visited mainly by hummingbirds.…”